Results 101 to 110 of about 440,511 (349)
Experimental validation of a two-dimensional shear-flow model for determining acoustic impedance [PDF]
Tests were conducted to validate a two-dimensional shear-flow analytical model for determining the acoustic impedance of a liner test specimen in a grazing-incidence, grazing-flow environment.
Jones, Michael G. +2 more
core +1 more source
Multi-scale uncertainty quantification in geostatistical seismic inversion
, 2018 Geostatistical seismic inversion is commonly used to infer the spatial distribution of the subsurface petro-elastic properties by perturbing the model parameter space through iterative stochastic sequential simulations/co-simulations.
Azevedo, Leonardo, Demyanov, Vasily
core +1 more source
High Thermoelectric Performance in Low‐Cost Cu8SiSxSe6‐x Argyrodite
Advanced Functional Materials, EarlyView.This study discovers the great potential of Cu8SiSxSe6‐x argyrodites as new, low‐cost, Te‐free thermoelectric materials. The proposed defect scheme suppresses the phase transition, enhances the weighted mobility and optimizes the grain boundary contacts.
Taras Parashchuk +7 more
wiley +1 more source
European Radiology Experimental, 2020 Background To examine in vitro acoustic property of nonalcoholic fatty disease in mouse and human liver to identify nonalcoholic steatohepatitis (NASH). Methods The acoustic impedance (× 106 kg/m2/s) was measured in 35 free fatty acids (FFAs, 500 mmol/L)
Hitoshi Maruyama +8 more
doaj +1 more source
A determination of the molar gas constant R by acoustic thermometry in helium [PDF]
, 2015 We have determined the acoustic and microwave frequencies of a misaligned spherical resonator maintained near the temperature of the triple point of water and filled with helium with carefully characterized molar mass M = (4.002 6032 ± 0.000 0015) g ...
Dematteis, R. +8 more
core +2 more sources
Omnidirectional Transmissive Acoustic Metasurfaces Based on Goldberg Polyhedra
Advanced Functional Materials, EarlyView.This study introduces omnidirectional acoustic metasurfaces capable of manipulating wavefronts in multiple arbitrary directions simultaneously. A full‐stack pipeline for design, optimization, and fabrication is presented to construct near‐spherical holograms based on Goldberg polyhedra.
Andrea Achilleos +3 more
wiley +1 more source
Journal of Marine Science and EngineeringWith the rapid advancement of underwater communication and unmanned aerial vehicle (UAV) technologies, the potential applications of cross-medium communication in environmental monitoring, maritime Internet of Things (IoTs), and rescue operations, in ...
Shaojian Yang +6 more
doaj +1 more source
New absorbent material acoustic based on kenaf’s fibre
Materiales de Construccion, 2010 Acoustic Standards in the building are responsible for, companies and individuals, propose new acoustic materials for the sound isolation. This paper presents a new sound-absorbent material, it is based on natural fibres, particularly fibres of kenaf. It
J. Ramis +4 more
doaj +1 more source
Turbofan noise generation and suppression in aircraft engines are reviewed. The chain of physical processes which connect unsteady flow interactions with fan blades to far field noise is addressed.
Groeneweg, J. F., Rice, E. J.
core +1 more source
Green Materials Comparation of Sawdust and Coconut Fibre Acoustical Waffle Panel [PDF]
, 2016 . The natural wealth of Indonesia produces a wide range of natural resources. This research will discuss sawdust and coconut fibre for example from natural resources which can be processed into building materials.
Hardiman, Gagoek, Setyowati, Erni
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